Question

Write a related subtraction fact for 9+3=12. & explain how the two facts are related?

Answer 1

12 - 3 = 9 or 12 - 9 = 3

they both use the same numbers. subtraction is the opposite of addition and allows us to check our answers

Answer 2

One possible answer is:

12 - 3 = 9.

Step-by-step explanation:

The two facts are related in that they are opposite statements. Addition and subtraction are opposite operations; subtraction will undo addition, and addition will undo subtraction.

In 3+9 = 12 and 12-9 = 3, we have basically "undone" the addition from the first statement in the second statement.